MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.me/wix?keyword=principles+of+composite+material+mechanics+pdf+free+download', is presented as a free download for an academic PDF, indicating a social engineering lure. The presence of numerous other links, many pointing to Shopify, suggests an attempt to create a link farm for SEO manipulation or to obscure the malicious redirector. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.me/wix?keyword=principles+of+composite+material+mechanics+pdf+free+download
- https://cdn.shopify.com/s/files/1/0429/8588/1759/files/www_eppicard_nj.pdf
- https://cdn.shopify.com/s/files/1/0429/5124/5987/files/tufagasamulusabela.pdf
- https://cdn.shopify.com/s/files/1/0432/5870/8118/files/8837892790.pdf
- https://cdn.shopify.com/s/files/1/0440/7682/6789/files/accounting_for_partnership_basic_concepts.pdf
- https://cdn.shopify.com/s/files/1/0438/0845/6861/files/never_back_down_song.pdf
- https://cdn.shopify.com/s/files/1/0429/8407/9523/files/setuvabitar.pdf
- https://cdn.shopify.com/s/files/1/0434/4355/2416/files/23114980465.pdf
- https://cdn.shopify.com/s/files/1/0428/9950/5311/files/55993871072.pdf
- https://static.usrfiles.com/ugd/7d21c0_0d1c6f6cd1314b7096a5cab099423cd8.pdf
- https://static.usrfiles.com/ugd/66c878_d1f68360b06444f08ffe9cbb2cc508c6.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000060d0.bin766c756caeefd9b0f24f3fd43813ac75bfe8c7b29f0254efbe248c29b562eed7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60D0 | 5488 bytes |
font_01_sfnt_off00007346.bin33d80b5e357abfa3ea91f5eff18928953f8e36d8e9a7aea158c838e8ae756dd9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7346 | 2116 bytes |
font_02_sfnt_off00007d10.bin1d37a27a65b4be9633e782b0329eed713b82c993e5b804bc0339f476d5c427c6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D10 | 15040 bytes |
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